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प्रश्न
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be:
पर्याय
28
14
56
42
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उत्तर
14
Explanation:
A germ cell has 14 pairs of chromosomes, i.e., half the number of chromosomes present in the normal body cell of an organism.
संबंधित प्रश्न
List two example of each diseases caused due to (i) bacterial infection and (ii) viral infection. Which device or devices may be used to prevent the spread of such diseases.
Do all organisms give birth to individuals like humans?
What is the scientific name of womb?
What is the scientific name of birth canal?
One of the following is not a part of the human male reproductive system. This is
(a) testis
(b) oviduct
(c) seminal vesicle
(d) prostrate gland
Describe in brief the role of ureter in human male reproductive system.
Give the names:
Methods of family planning.
Diagram shows the reproductive system of female human beings:
(i) Name the parts numbered 1 to 14.
(ii) Normally, after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What is the role of sperms after their ejaculation in vagina?
(v) What is the function of the organ numbered 5?
(vi) What is the gestation period in human?
Complete the following statement by choosing the correct alternative:
Sterilization in female is due to cutting off of ______.
Which reproductive function is specifically responsible for the movement of gametes to the site of fertilisation?
